From Phisick.com: “This French medaille by Carolus of Paris contained steel, lead, copper
From Phisick.com: “This French medaille by Carolus of Paris contained steel, lead, copper and brass and was made by Ferdinand De Boyeres. The accompanying advertisement from the 5th edition of L’Imparial on Sat 3rd April 1887 claims that using this medal with a double electric current would protect the wearer against numerous illnesses by regeneration and purification of the blood. It cost 5 Francs.” Source: Phisick.com -- source link
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